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chino180sx
90cc 2 stroke / 110 4 stroke
Joined: 04 Jul 2008
Posts: 66
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 Posted: Mon Jul 07, 2008 5:43 pm Post subject: yfz450 Broken Block??? WTF |
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hey guys i let my mate ride my bike  maybe a mistake lol
he comes out of a ditch i was watching him and he only went slow but then stopped.. and the chain came off??? when i got there there was oil coming out of the bottom of the engine.. when i checked it..
i saw the gear selector and pushed through the bottom of the engine and snapped off a peice of block near the hole (where the selector comes out) and oil was pissen everywhere...
any "profanity removed" ideas wot the "profanity removed" happened??? 
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1 x yfz450 2007 all the fruit, looking for a second bike |
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WAT4
Blaster class
Joined: 21 Feb 2006
Posts: 175
Location: Mount Gambier SA
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| Posted: Mon Jul 07, 2008 6:17 pm Post subject: |
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Yes, the chain bunches and bends the selector, smashing the case. I have seen a couple of Yamahas do the exact same thing and every time they were not repairable. A set of new engine cases please.
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DNA ATV Racing 09 KTM300EXC |
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chino180sx
90cc 2 stroke / 110 4 stroke
Joined: 04 Jul 2008
Posts: 66
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| Posted: Mon Jul 07, 2008 8:43 pm Post subject: |
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| WAT4 wrote: | | Yes, the chain bunches and bends the selector, smashing the case. I have seen a couple of Yamahas do the exact same thing and every time they were not repairable. A set of new engine cases please. |
no "profanity removed"??? how do i prevent that?? spose all i can do is make sure the chain is always tight? is there any part which saves this issue fark.. lol yer i know im replacing heaps of "profanity removed" costin me a mint
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1 x yfz450 2007 all the fruit, looking for a second bike |
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WAT4
Blaster class
Joined: 21 Feb 2006
Posts: 175
Location: Mount Gambier SA
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| Posted: Mon Jul 07, 2008 11:21 pm Post subject: |
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Fit a good quality aftermarket case saver and a fully enclosed type rear chain guide. This stops the chain from fully derailing and allowing all that loose chain to bunch. TM Designworks make a good one that bolts to the standard swingarm, call Hardimans.
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DNA ATV Racing 09 KTM300EXC |
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chino180sx
90cc 2 stroke / 110 4 stroke
Joined: 04 Jul 2008
Posts: 66
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| Posted: Mon Jul 07, 2008 11:48 pm Post subject: |
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| WAT4 wrote: | | Fit a good quality aftermarket case saver and a fully enclosed type rear chain guide. This stops the chain from fully derailing and allowing all that loose chain to bunch. TM Designworks make a good one that bolts to the standard swingarm, call Hardimans. |
Thanx man thats awesome.. does any of these things affect the bike in any other way? not too heavy?
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1 x yfz450 2007 all the fruit, looking for a second bike |
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Dingo555
Roostin Away
Joined: 25 Sep 2007
Posts: 778
Location: Closer to the Qld coast
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| Posted: Mon Jul 07, 2008 11:56 pm Post subject: |
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had this happen to a mates yfz recently....although it only broke the lug off for the case saver. Checked and oiled his chain before riding, his axle bearing collapsed and threw the chain...
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10 LTR 555 Dingo
06 LTR 94 Kay
Thanks for all the support and good advice
ATVPRO
Colac Motorcylces
Luke Beechey Motorsports
Proud supporter of Team Ironpot
No skills or good habits, just point it and stab it..!! |
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ReD HeaderZ
Roostin Away
Joined: 24 Jul 2006
Posts: 828
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| Posted: Tue Jul 08, 2008 12:25 am Post subject: |
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| man how harsh is that....what a pain in the ar!@, never heard of it but I guess you never know what will let go...damn |
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chino180sx
90cc 2 stroke / 110 4 stroke
Joined: 04 Jul 2008
Posts: 66
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| Posted: Tue Jul 08, 2008 3:20 am Post subject: |
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| ReD HeaderZ wrote: | | man how harsh is that....what a pain in the ar!@, never heard of it but I guess you never know what will let go...damn |
yer man costin 3 grand or some "profanity removed".. bah!
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1 x yfz450 2007 all the fruit, looking for a second bike |
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WAT4
Blaster class
Joined: 21 Feb 2006
Posts: 175
Location: Mount Gambier SA
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| Posted: Tue Jul 08, 2008 7:42 am Post subject: |
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That sounds way too dear. From memory the last set of cases we got were only about $800, and a shifter. That leaves a whole lot of labour and gaskets. Might pay to get a second quote. The parts to help prevent this would be lucky to weigh 1kg.
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DNA ATV Racing 09 KTM300EXC |
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4stroker
Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland
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| Posted: Tue Jul 08, 2008 8:59 am Post subject: |
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pm "quad" to see if he can get you a set of cases
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2002 SE Banshee |
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chino180sx
90cc 2 stroke / 110 4 stroke
Joined: 04 Jul 2008
Posts: 66
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| Posted: Tue Jul 08, 2008 1:23 pm Post subject: |
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| WAT4 wrote: | | That sounds way too dear. From memory the last set of cases we got were only about $800, and a shifter. That leaves a whole lot of labour and gaskets. Might pay to get a second quote. The parts to help prevent this would be lucky to weigh 1kg. |
"profanity removed" ay i spose ill get one then....
urm the jobs already gettin done lol, gettin the parts straight from yamaha mang... 
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1 x yfz450 2007 all the fruit, looking for a second bike |
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PeteW
Moderator
Joined: 09 Feb 2006
Posts: 1877
Location: Doreen, Vic
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| Posted: Tue Jul 08, 2008 3:37 pm Post subject: |
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last one I did ended up at about $2300 all up but that also included all the bits so that id wouldn't do it again (swingarm Skid and chain guide, case saver etc.)and a new chain and sprockets, a few new bearings and a gasket kit. the only thing that was geniune was the cases though, $870 from yamaha if I remember correctly.
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www.thumbpump.com
www.dirtcomp.com.au |
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chino180sx
90cc 2 stroke / 110 4 stroke
Joined: 04 Jul 2008
Posts: 66
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| Posted: Tue Jul 08, 2008 4:15 pm Post subject: |
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| PeteW wrote: | | last one I did ended up at about $2300 all up but that also included all the bits so that id wouldn't do it again (swingarm Skid and chain guide, case saver etc.)and a new chain and sprockets, a few new bearings and a gasket kit. the only thing that was geniune was the cases though, $870 from yamaha if I remember correctly. |
i got gipped lol
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1 x yfz450 2007 all the fruit, looking for a second bike |
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Quad
The Day Starts With OZATV !
Joined: 22 Oct 2006
Posts: 2773
Location: UP FRONT
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| Posted: Tue Jul 08, 2008 5:58 pm Post subject: |
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| how did you go |
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